- The NLC will be closed for the following holidays:
| Holiday | 2016-2017 | 2017-2018 | 2018-2019 |
| TEACHER WORK DAY | Friday, August 26 | TBA (Last Friday before Loudoun County Public Schools start) | TBA (Last Friday before Loudoun County Public Schools start) |
| Labor Day | Monday, September 5 | Monday, September 4 | Monday, September 3 |
| Columbus Day | Monday, October 10 | Monday, October 9 | Monday, October 8 |
| Thanksgiving Day | Thursday, November 24 | Thursday, November 23 | Thursday, November 22 |
| Day After Thanksgiving | Friday, November 25 | Friday, November 24 | Friday, November 23 |
| Christmas Eve, NLC closes @ 2pm | Friday, December 23 | Friday, December 22 | Monday, December 24 |
| Christmas Day | Monday, December 26 | Monday, December 25 | Tuesday, December 25 |
| New Year’s Day | Monday, January 2 | Monday, January 1 | Tuesday, January 1 |
| Martin Luther King, Jr Day | Monday, January 16 | Monday, January 15 | Monday, January 21 |
| President’s Day | Monday, February 20 | Monday, February 19 | Monday, February 18 |
| Good Friday, NLC closes @ 2pm | Friday, April 14 | Friday, March 30 | Friday, April 29 |
| Memorial Day | Monday, May 29 | Monday, May 28 | Monday, May 27 |
| July 4th | Tuesday, July 4 | Wednesday, July 4 | Thursday, July 4 |
*** Once the Loudoun County School calendar is published for these school years the dates for these Teacher Work Days will be announced. They will be held the Friday prior to the first day of school.